CVE-2026-45956

HIGH EPSS 2.6%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() vidi_connection_ioctl() retrieves the driver_data from drm_dev->dev to obtain a struct vidi_context pointer. However, drm_dev->dev is the exynos-drm master device, and the driver_data contained therein is not the vidi component device, but a completely different device. This can lead to various bugs, ranging from null pointer dereferences and garbage value accesses to, in unlucky cases, out-of-bounds errors, use-after-free errors, and more. To resolve this issue, we need to store/delete the vidi device pointer in exynos_drm_private->vidi_dev during bind/unbind, and then read this exynos_drm_private->vidi_dev within ioctl() to obtain the correct struct vidi_context pointer.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥4.3  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.167
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.18.14
linuxlinux_kernel*≥6.19  –  <6.19.4

References 7

  • git.kernel.org https://git.kernel.org/stable/c/21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2987642c5213508c6c9e718324c0d5289a92c474
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65d1213baffa363f2eb1117b1dc7acc573b890f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/875fa28690e93ed5296c31d3344556c6bb867234
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a540f767642f75240a6c35f6a65b69e44cfcea9d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b5fc86d753dd4c281a943b92f0eef02d31af03d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d3968a0d85b211e197f2f4f06268a7031079e0d0
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2987642c5213508c6c9e718324c0d5289a92c474
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65d1213baffa363f2eb1117b1dc7acc573b890f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/875fa28690e93ed5296c31d3344556c6bb867234
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a540f767642f75240a6c35f6a65b69e44cfcea9d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b5fc86d753dd4c281a943b92f0eef02d31af03d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d3968a0d85b211e197f2f4f06268a7031079e0d0
    Patch